linux-kernel - Re: [PATCH] mm: vmscan: fix typo in isolating lru pages

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Message-ID: <4EFCA1A1.70507@gmail.com>
Date:	Thu, 29 Dec 2011 12:21:37 -0500
From:	KOSAKI Motohiro <kosaki.motohiro@...il.com>
To:	Hillf Danton <dhillf@...il.com>
CC:	linux-mm@...ck.org, David Rientjes <rientjes@...gle.com>,
	Hugh Dickins <hughd@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Michal Hocko <mhocko@...e.cz>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: vmscan: fix typo in isolating lru pages

(12/29/11 7:38 AM), Hillf Danton wrote:
> It is not the tag page but the cursor page that we should process, and it looks
> a typo.
>
> Signed-off-by: Hillf Danton<dhillf@...il.com>
> Cc: Michal Hocko<mhocko@...e.cz>
> Cc: KAMEZAWA Hiroyuki<kamezawa.hiroyu@...fujitsu.com>
> Cc: Andrew Morton<akpm@...ux-foundation.org>
> Cc: David Rientjes<rientjes@...gle.com>
> Cc: Hugh Dickins<hughd@...gle.com>
> ---
>
> --- a/mm/vmscan.c	Thu Dec 29 20:20:16 2011
> +++ b/mm/vmscan.c	Thu Dec 29 20:23:30 2011
> @@ -1231,13 +1231,13 @@ static unsigned long isolate_lru_pages(u
>
>   				mem_cgroup_lru_del(cursor_page);
>   				list_move(&cursor_page->lru, dst);
> -				isolated_pages = hpage_nr_pages(page);
> +				isolated_pages = hpage_nr_pages(cursor_page);
>   				nr_taken += isolated_pages;
>   				nr_lumpy_taken += isolated_pages;
>   				if (PageDirty(cursor_page))
>   					nr_lumpy_dirty += isolated_pages;
>   				scan++;
> -				pfn += isolated_pages-1;
> +				pfn += isolated_pages - 1;
>   			} else {
>   				/*
>   				 * Check if the page is freed already.

Looks correct.

Acked-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>


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